/* ==================== Design System & Core Styles ==================== */
:root {
    --bg-color: #0d0f12;
    --card-bg: rgba(22, 26, 32, 0.6);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-border-hover: rgba(255, 255, 255, 0.18);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent-color: #ff8e53;
    --accent-glow: rgba(255, 142, 83, 0.35);
    --accent-gradient: linear-gradient(135deg, #ff8e53 0%, #ff6b6b 100%);
    --chip-bg: rgba(31, 38, 48, 0.5);
    --chip-active-bg: #ff8e53;
    --chip-active-text: #0d0f12;
    --modal-bg: rgba(18, 22, 28, 0.85);
    --glow-color-1: rgba(142, 68, 173, 0.15);
    --glow-color-2: rgba(41, 128, 185, 0.15);
    --font-outfit: 'Outfit', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-outfit);
    overflow-x: hidden;
    line-height: 1.6;
    min-height: 100vh;
}

/* Background Atmosphere Glows */
.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.8;
}

.bg-glow-1 {
    top: -100px;
    left: -100px;
    background-color: var(--glow-color-1);
    animation: floatGlow 15s infinite alternate ease-in-out;
}

.bg-glow-2 {
    bottom: -150px;
    right: -150px;
    background-color: var(--glow-color-2);
    animation: floatGlow 20s infinite alternate-reverse ease-in-out;
}

@keyframes floatGlow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 30px) scale(1.1); }
}

.container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== Header Section ==================== */
header {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background-color: rgba(13, 15, 18, 0.7);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 26px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 8px var(--accent-glow));
}

.logo-text h1 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--text-primary);
}

.logo-text span {
    font-size: 11px;
    color: var(--text-secondary);
    display: block;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: -2px;
}

.admin-link-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    border-radius: 50px;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 6px;
}

.admin-link-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

.system-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: 50px;
    padding: 6px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* ==================== Search & Filter Controls ==================== */
.controls-section {
    margin: 40px 0 24px 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.search-and-date-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 16px;
    width: 100%;
}

@media (max-width: 768px) {
    .search-and-date-row {
        grid-template-columns: 1fr;
    }
}

.search-box {
    position: relative;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 18px;
}

.search-box input {
    width: 100%;
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 16px 20px 16px 54px;
    color: var(--text-primary);
    font-family: var(--font-outfit);
    font-size: 15px;
    transition: var(--transition-smooth);
    backdrop-filter: blur(8px);
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow);
    background-color: rgba(22, 26, 32, 0.85);
}

/* Filter Container layout */
.filter-container {
    display: flex;
    align-items: center;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 5px;
    scrollbar-width: none;
}

.filter-container::-webkit-scrollbar {
    display: none;
}

.filter-label {
    font-size: 13.5px;
    color: var(--text-secondary);
    font-weight: 600;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 6px;
}

.filter-chips {
    display: flex;
    gap: 10px;
    min-width: max-content;
}

.chip {
    background-color: var(--chip-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 10px 22px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-smooth);
    font-family: var(--font-outfit);
    backdrop-filter: blur(8px);
}

.chip:hover {
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.chip.active {
    background: var(--accent-gradient);
    border-color: transparent;
    color: var(--chip-active-text);
    font-weight: 600;
    box-shadow: 0 4px 15px var(--accent-glow);
}

/* ==================== Stats Bar ==================== */
.gallery-stats {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gallery-stats span#items-count {
    display: flex;
    align-items: center;
    gap: 8px;
}

.gallery-stats span#items-count::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: var(--accent-color);
    border-radius: 50%;
}

.active-date-display {
    background: rgba(255, 142, 83, 0.1);
    color: var(--accent-color);
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid rgba(255, 142, 83, 0.15);
    font-weight: 500;
}

/* ==================== Gallery Section (Waterfall) ==================== */
.gallery-section {
    position: relative;
    min-height: 400px;
    margin-bottom: 60px;
}

/* Upgraded to 5 Columns layout on large screens */
.masonry-grid {
    column-count: 5;
    column-gap: 24px;
    width: 100%;
}

@media (max-width: 1400px) {
    .masonry-grid { column-count: 4; }
}

@media (max-width: 1100px) {
    .masonry-grid { column-count: 3; }
}

@media (max-width: 800px) {
    .masonry-grid { column-count: 2; }
}

@media (max-width: 500px) {
    .masonry-grid { column-count: 1; }
}

/* Card Styles */
.card {
    break-inside: avoid;
    margin-bottom: 24px;
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    backdrop-filter: blur(8px);
    display: block;
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--card-border-hover);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.card-image-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
    aspect-ratio: 1 / 1;
    background-color: rgba(255, 255, 255, 0.02);
}

.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    display: block;
}

.card:hover .card-img {
    transform: scale(1.05);
}

/* Overlay Info on Hover */
.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(13, 15, 18, 0.95) 0%, rgba(13, 15, 18, 0.3) 60%, rgba(13, 15, 18, 0) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    pointer-events: none;
}

.card:hover .card-overlay {
    opacity: 1;
}

.card-category {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 4px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.card-prompt {
    font-size: 12px;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
    margin-top: 4px;
}

/* Card visible footer (for non-hover screens / mobile) */
.card-info {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-info-text {
    flex-grow: 1;
}

.card-info-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-info-category {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 1px;
}

.card-action-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 12px;
    transition: var(--transition-smooth);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.card:hover .card-action-icon {
    background-color: var(--accent-color);
    color: var(--chip-active-text);
    border-color: transparent;
    transform: scale(1.1);
}

/* ==================== Loading & Empty States ==================== */
.loader-container {
    text-align: center;
    padding: 60px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    width: 100%;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 142, 83, 0.1);
    border-radius: 50%;
    border-top-color: var(--accent-color);
    animation: spin 1s linear infinite;
    box-shadow: 0 0 15px rgba(255, 142, 83, 0.1);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loader-container p {
    color: var(--text-secondary);
    font-size: 14px;
}

.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 48px;
    color: var(--text-secondary);
    opacity: 0.5;
    margin-bottom: 16px;
}

.empty-state h3 {
    color: var(--text-primary);
    font-size: 18px;
    margin-bottom: 8px;
}

/* ==================== Footer ==================== */
footer {
    border-top: 1px solid var(--card-border);
    padding: 30px 0;
    background-color: rgba(9, 11, 14, 0.9);
    margin-top: auto;
    font-size: 13px;
    color: var(--text-secondary);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.active-tag {
    color: #10b981;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ==================== Detail Modal ==================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal.open {
    opacity: 1;
    pointer-events: all;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(5, 7, 9, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.modal-content {
    background-color: var(--modal-bg);
    border: 1px solid var(--card-border);
    border-radius: 28px;
    width: 90%;
    max-width: 1100px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    z-index: 1010;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    transform: scale(0.95) translateY(20px);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal.open .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close-btn {
    position: absolute;
    right: 24px;
    top: 24px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition-smooth);
    z-index: 1020;
}

.modal-close-btn:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: rotate(90deg);
}

.modal-body {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    height: 100%;
}

@media (max-width: 850px) {
    .modal-body {
        grid-template-columns: 1fr;
    }
}

.modal-image-wrapper {
    background-color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.modal-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-info {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-left: 1px solid rgba(255, 255, 255, 0.05);
}

@media (max-width: 850px) {
    .modal-info {
        border-left: none;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        padding: 30px 24px;
    }
}

.modal-category {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 8px;
    display: inline-block;
}

#modal-title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 4px;
}

.modal-en-title {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 20px;
}

/* Gemini Description Box styling */
.modal-description-box {
    background: rgba(255, 142, 83, 0.03);
    border: 1px dashed rgba(255, 142, 83, 0.2);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 24px;
}

.modal-catchphrase {
    color: var(--accent-color);
    font-family: var(--font-outfit);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    font-style: italic;
}

.modal-description-text {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
}

/* Prompt Box */
.prompt-box {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 16px 20px;
    margin-bottom: 24px;
}

.prompt-box label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 8px;
    display: block;
}

.prompt-text-container {
    max-height: 80px;
    overflow-y: auto;
    margin-bottom: 12px;
    padding-right: 8px;
}

.prompt-text-container::-webkit-scrollbar {
    width: 4px;
}

.prompt-text-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

#modal-prompt {
    font-size: 13px;
    line-height: 1.5;
    color: #e5e7eb;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 12px;
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-outfit);
    text-decoration: none;
}

.copy-btn {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    padding: 8px 16px;
    width: 100%;
}

.copy-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
}

.modal-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.03);
    padding: 12px 16px;
    border-radius: 14px;
}

.meta-item i {
    font-size: 18px;
    color: var(--text-secondary);
}

.meta-label {
    display: block;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.meta-value {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.download-btn {
    background: var(--accent-gradient);
    color: var(--chip-active-text);
    padding: 14px 24px;
    width: 100%;
    font-size: 15px;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--accent-glow);
}

/* ==================== Copy Toast Notification ==================== */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: #ff8e53;
    color: #0d0f12;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    z-index: 2000;
    box-shadow: 0 8px 20px rgba(255, 142, 83, 0.4);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ==================== Responsive adjustments ==================== */
@media (max-width: 600px) {
    header {
        padding: 12px 0;
    }
    .logo-text h1 {
        font-size: 18px;
    }
    .logo-icon {
        font-size: 22px;
    }
    .system-badge {
        padding: 5px 12px;
        font-size: 10.5px;
    }
    .controls-section {
        margin: 25px 0 16px 0;
        gap: 14px;
    }
    .search-box input {
        padding: 14px 16px 14px 46px;
        font-size: 14.5px;
    }
    .search-icon {
        left: 16px;
        font-size: 15px;
    }
    .chip {
        padding: 8px 18px;
        font-size: 13px;
    }
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}